package com.example.demo.config;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * @ClassName SpringContextUtil
 * @Description Spring工具类,用来获取bean
 * @projectName **
 * @Author wangjian
 * @Date 19/06/26 15:31
 * @Version <1.0>
 */
@SuppressWarnings({"unused"})
@Component
public class SpringContextUtil implements ApplicationContextAware {

    public static final Logger logger = LoggerFactory.getLogger(SpringContextUtil.class);

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
        logger.info("applicationContext:" + SpringContextUtil.applicationContext);
    }

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

}
